Sofia features a humid continental climate with four distinct seasons, including warm, sunny summers and cold, snowy winters. The city’s mountain surroundings bring fresh air and dramatic seasonal contrasts, with spring and autumn offering vibrant colours and variable weather. Rainfall and sunshine are spread throughout the year, making Sofia a dynamic destination for every traveller.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Sofia’s climate is shaped by its location in a high-altitude valley surrounded by mountains, resulting in notable seasonal contrasts. Winters (December–February) are cold and snowy, with average highs of 3–5°C and lows around –4°C. Snowfall is common, and temperatures can drop below –15°C on the coldest nights, while frost and fog are frequent. Days are short, with 2–3 hours of sunshine, and humidity is high, making the cold feel sharper. Winter is ideal for nearby ski resorts, and the city is often blanketed in snow.
Spring (March–May) brings rapid warming and variable weather, with highs rising from 10°C in March to 21°C by May. Rainfall increases, especially in May and June, with frequent thunderstorms. Summers (June–August) are warm and sunny, with average highs of 25–28°C and cool nights (13–16°C). Heatwaves can push temperatures above 35°C, but humidity remains moderate and evenings are comfortable. July and August are the sunniest months, with up to 10 hours of sunshine daily. Autumn (September–November) is mild to cool, with highs from 23°C in September to 9°C in November. Rain and fog become more frequent, and the city’s parks turn golden. Annual precipitation averages 625–735 mm, peaking in late spring and early summer, and Sofia enjoys about 2,260 hours of sunshine per year. Winds are generally light, but can be brisk during storms.
| Average climate data for Sofia, Bulgaria | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 3 | 6 | 11 | 16 | 21 | 25 | 27 | 27 | 23 | 17 | 10 | 4 | 27 |
| Average minimum temperature (°C) | -4 | -3 | 1 | 5 | 10 | 13 | 15 | 15 | 11 | 7 | 2 | -2 | -4 |
| Average precipitation (mm) | 33 | 32 | 38 | 51 | 67 | 75 | 53 | 57 | 45 | 45 | 43 | 42 | 579 |
| Average rainfall days (days) | 9 | 10 | 10 | 12 | 13 | 12 | 10 | 9 | 7 | 11 | 10 | 12 | 125 |
| Average snowfall (mm) | 232 | 195 | 150 | 28 | 0 | 0 | 0 | 0 | 0 | 19 | 108 | 250 | 981 |
| Average snowfall days (days) | 7 | 6 | 6 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 7 | 32 |
| Average daily daylight hours (h) | 9 | 10 | 12 | 13 | 14 | 15 | 15 | 13 | 12 | 11 | 9 | 9 | 12 |
| Average daily sunshine hours (h) | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 9 | 7 | 5 | 3 | 2 | 6 |
| Average UV index | 1 | 2 | 4 | 5 | 7 | 9 | 9 | 8 | 6 | 4 | 2 | 1 | 5 |
The best time to visit Sofia is from May to September, when temperatures are mild to warm (20–28°C), days are long and sunny, and the city is lively with festivals, outdoor events, and blooming parks. These months offer ideal conditions for sightseeing, hiking in the mountains, and enjoying Sofia’s vibrant cultural life.
The least favourable time to visit is from November to March, when Sofia is coldest, daylight hours are shortest, and snow, rain, and fog are frequent. While winter brings festive charm and access to ski resorts, outdoor activities in the city can be limited by chilly, damp, and unpredictable weather.
Sofia has a humid continental climate with warm, sunny summers and cold, snowy winters. Spring and autumn are mild but variable, with moderate rainfall and dramatic changes in daylight and temperature.
Summer temperatures in Sofia typically reach 25–28°C, with occasional heatwaves above 35°C. Nights are cool, and thunderstorms are common, especially in June and July.
Yes, snow is common in Sofia from December to March, especially in January and February. Heavy snowfalls and frosty nights are typical, and the city often has snow cover for several weeks.
Rain falls year-round, but May and June are usually the wettest months, with frequent thunderstorms. Showers are common in spring and early summer, while autumn is generally drier.
Sofia enjoys about 2,260 hours of sunshine annually. July and August are the sunniest months, with up to 10 hours of sunshine per day, while December is the darkest, with only 2–3 hours daily.
Bring warm, waterproof layers and insulated boots for winter. In spring and autumn, pack layers and a rain jacket. For summer, light, breathable clothes, sun protection, and a jumper for cool evenings are essential.
Sofia is moderately humid year-round, with humidity highest in winter and lowest in late summer. Winds are generally light, but can be brisk during storms or mountain excursions.
The warmest month, with the highest average maximum temperature, is August (27.4 °C). The month with the lowest average maximum temperature is January (3.4 °C). Overall, the average maximum temperature over the whole year is 15.9 °C.
The month with the highest average minimum temperature is July (15.1 °C). The coldest month, with the lowest average minimum temperature, is January (-3.9 °C). Overall, the average minimum temperature over the whole year is 5.8 °C.
The wettest month, with the highest amount of precipitation, is June (74.5 mm). The driest month, with the least amount of precipitation, is February (31.8 mm). Over the whole year there are 579.3 mm of rainfall on average.
The month with the most days of rain is May (12.9 days). The month with the fewest days of rain is September (7.1 days). Over the whole year there are 125.2 days of rain on average.
The month with the most snowfall is December (249.9 mm). The months with the least snowfall are May, June, July, August and September (0 mm). Over the whole year there are 981.3 mm of snowfall on average.
The month with the most days of snowfall is January (7.2 days). The months with the fewest days of snowfall are June and September (0 days). Over the whole year there are 32.2 days of snowfall on average.
The month with the longest days, so the most daylight, is June (Average daylight: 15 h). The month with the shortest days, so the least daylight, is December (Average daylight: 9 h). Over the whole year there are 11.9 h of daylight per day on average.
The month with the most sunshine per day is July (Average sunshine: 9.2 h). The month with the least sunshine per day is December (Average sunshine: 2.1 h). Over the whole year there are 5.7 h of sunlight per day on average.
The months with the highest average UV index are June and July (UV index: 9). The months with the lowest average UV index are January and December (UV index: 1). Over the whole year the average UV index is 4.8.
